| 摘要 |
<p>A riveting device 1 incorporates, pilot head 3 from which protrudes a guided punch 2 for radially expanding the base of the tubular rivet 4. The other end of the rivet 4 has an outer flange 5 on which the pilot head 3 rests. The base of the rivet 4 has an inner flange 6 which is deformed by the punch 2 to form the inner flange 6 into an outer flange. Instead of being provided with a flange 4, the rivet may be internally tapered. <IMAGE></p> |
